English Dictionary
Definition of “emission”
emission (ɪˈmɪʃən
)
Definitions
noun
- the act of emitting or sending forth
- energy, in the form of heat, light, radio waves, etc, emitted from a source
- a substance, fluid, etc, that is emitted; discharge
- a measure of the number of electrons emitted by a cathode or electron gun ⇒
at 1000°C the emission is 3 mA
See also secondary emission
, thermionic emission
- physiology any bodily discharge, esp an involuntary release of semen during sleep
- an issue, as of currency
Alternative Forms
eˈmissive adjective Word Origin
C17: from Latin ēmissiō, from ēmittere to send forth, emit
Synonyms
View thesaurus entry
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giving off or out
release,
shedding,
leak,
radiation,
discharge,
transmission,
venting,
issue,
diffusion,
utterance,
ejaculation,
outflow,
issuance,
ejection,
exhalation,
emanation,
exudation,
Usage examples
He called for novices to clean up Bardo's strong-smelling emission.
Zindell, David, The Broken God (1993)A map of the hydrogen emission from each cloud reveals how big a patch of sky it covers.
New Scientist (1998)Cabinet ministers are due to receive a report in about a month on regulating emission standards.
New Zealand Herald (2003)The alliance also accuses 4x4 owners of causing excessive pollution by choosing vehicles that have high carbon dioxide emission.
Times, Sunday Times (2005)This can be done using the PET scan (positron emission tomography).
Eysenck, Hans, Test Your I.Q. (1994)
